xmlns:atom="http://www.w3.org/2005/Atom" xmlns:atom="http://www.w3.org/2005/Atom"
Valid from 25/01/2018
Valid from 01/04/2018
8E+WThe material in Group 4 comprises only—
(a)vitrified wastes and residues from the thermal processing of minerals where the wastes or residues are both fused and insoluble;
(b)slag from waste incineration.